Continuous window-glass-drawing machine.



-W. MARTIN. CONTINUOUS WINDOW GLASS DRAWING MACHINE.

- APPLIOATIQN mum SEPT. 20,1009.

Patented Sept. .6, 1910.

2 supra-sum 1.

31102 1 I} oz mm,

q vi i'nuoea W. MARTIN. 'oommuouswmnow GLASS DRAWING MACHINE.

APPLICATION FILED SEPT. 20, 1909.

Patented Sept. 6,- 1910.

2 SHEETS-SHEET 2.

3111mm to:

UNITED STATES.

PATENT our-ion.

WILIQIAM MARTIN, F JEANNETTE, PEN'NSYLVAN' I-A.

con rmnous wmnow-eLass-naawme MACH NE.

Specification of'Lette'rsPatent.

Patented Sept. 1910.

Application filed September 20, 1909; serial No; 513,593.

I To all 'it' may concern.

, Be it known that I, WILLIAM MARTIN, a

citizen of -the United States, residing at Jeannette, in the county ofWestmoreland and State of Pennsylvania, have invented a new an'dusefulImprovement in Continuous Window Glass Drawing Machines, of

V which the following is a specification.

drawing machines, the object being to 1mprove the general 4 cylinder canbe,

This invention relates to.certain new and useful improvements incontinuous glass construction whereby the drawn upwardly with greaterease.

A' still further object of'the invention toimprove the generalconstruction of con veyer whereby the curved arms of the coneyer are '3;.Anotherobject of the invention is Another object so constructed'thatthey will yield when thrown into'engagement with the glass cylinder-sothat all danger of breaking the same is prevented. v a

f the invention is to pro- Niide -guide rollers for the,cylinder so asto preye'nt the same from moving in any direction when being, drawnupwardly.-

to prd- '"vide a glass drawing machinein which the air is suppliedthrough 3.100116 extending upwardly through the bottom of the tank.

A. still .further ob]ect of the inventionlis to improve the-constructionof piston where-' by the same will adjust itself to the inside of thecylinder in such a manner that a perfect air tight joint will beformed.-

Another object of the invention is to provide a second piston which isformed of a cork shell which is held tightly against the sinner face ofthe cylinder by springs.

With these various objects "in view, my invention consists of the novelfeatures of construction, combination and arrangement view of Fig. 5,and Fig. 7.is'a .detail view of parts hereinafter fully described,pointed ou'tin the claims and shown in the accompanying drawings, inwhich,

Figure -1 is a side'elevation of my 1m proved continuous glass drawingmachine showing the glass cylinder being mp'ved up.- wardly. bythe,conveyer. Fig. 2 1s a side elevation taken at right'angles to'thatof- Fig. 1, showing the, cylinder being started from the tank of moltenglass by the nipple.

Fig. 3 is a top plan view ofthe'machine'. gpiston, Fig. 5 is a Verticalsection through the metallic piston. Fig. 6 isa top plan 4 is a verticalsection through the cork showing the manner of connecting the arms -tothe chain of the endless conveyor.

employ a tank A having an opening .A, in its top throu h which extends aconical memfrom a suitable fanor pump,,not shown, for supplying air tothe cylinder as will be hereinafter fully described.

Extending upwardlytank A' is a frame D formed of four uprights D o aremounted horizontal shafts on which are secured sprockets E and-F oversaid solid links carryingspring members H when the same arebroughtintoengagement with the glass cylinder they willbe protected from. theheat of the same. The

allow the same to. give so that when the'arms are brought intoengagement with the 'cylinder they will yield-to such an extent that alldangerofthe cylinder becoming'broken' is prevented. For holding thecurved farms of the endless chain G into en agement with the sides ofthe glass cylin' er in such a manner that all danger of the cylinder bewill also-be rotated so as to cause the cona glasscylinder-whichhas beenformed up escr b d,

In carrying out my improved inventionI ber B which 15 preferablyformedof fire clay and is provided with a vertical bore B in. which isarranged a pipe Cto which is connected an air supplying pipe C leading.

from the top of I the whichare mounted endless chains G of improvedconv'eyers which are formed of open and solid linksalternately arranged;to which are connected curved arms l'having their faces lined-withasbestos so that-so spring membersv H- are fixed at ,one endas shown atH" and are slidably connected at their 'other."ends as shown at H soastocOmingbroken as the arms arcibrought into .of the with the sameaswill'be hereinafter fully All aig' pipe m: piston rod K is'slidablyarranged in pairsbetween, which belt operated by any suitablem'e'ai isand it vey ers to move upwardly in order to carry mounted in suitablebearings not shown be tween the conveyers and is provided with athreaded lower end on which is adapted to be secured a bait L which islowered into the tank of molten glass'over the conical member B so thatwhen air is forced through the conical member into the cylinder will bestarted as the piston rod K is moved upwardly and the cylinder is drawnin the ordinary manner until it is caught by the endless conveyers.

For guiding the cylinder after being carried upwardly by the conveyers Iprovide the uprights with conical guide rollers M above and below theconveyers so that thecylinder will be guided in such a manner that alldanger of the same w-abbling or moving in any way is prevented. Afterthe cylinder has been drawn upwardly by the conveyers the piston rod Kand bait L are removed and pistons N and O are secured on a piston rod Kwhich is provided with a'threaded lower end portion, is inserted withinthe glass cylinder, the threaded end being adapted tobe secured in thethreaded upper portion of the conical member B for holding the same inposition. The piston N is formed of a metal disk 0 provided with acollar 0 which is locked in position on the piston rod by set screws 0and the disk 0 is provided with plates 0 extending upwardly therefromwhich are overlapped as clearly shown in Fi .6 and against which areadapted to ear spring members P carried by a collar P secured in thepiston rod- K by a .set screw P While I have shown and described thespring members only bearing against a certain number of inside curvedplates it is of course understood that the spring members will eithercarry curved plates at their free ends or a greater number of springmembers will be used so that the tendency of the plates will be to moveoutwardly in order to completely fill the cylinder when placed thereinso that an air tight joint will be formed around the same whereby theair will beheld within the cylinder as it is forced through the conicalmember so that the cylinder can be drawn upwardly in a similar manner toglass blowing machines now in use.

To insure the complete closing of the cylind er the piston N is placedon the piston rod K above the piston 0, said piston N comprising a diskI provided with a collar N for locking the same in position on thepiston rod and the disk is provided with a cork shell 1 3 which is heldtightly against the inner face of the cylinder by springs Q, carried bythe collar Q secured on the piston rod K and it will be seen'that bythis construction the cork shell will yield as the springs force thesame outwardly so as to fit tightly against the inner face of thecyli'rl der in order that the upper end will be com pletely closed incase that air should escape from the lower cylinder.

The operation of my improved glass blowing machine is as follows :Asshown in Fig. 2 the bait has been dropped into the tank of molten glassover the conical member and the cylinder started, as the same is drawnupwardly it passes between the conical guide rollers M and is caught bythe -arms of the conveyers so that the same will be drawn upwardly asthe conveyers are operated. The bait and piston rod K are then removedfrom the cylinder thus formed and the piston rod K, provided withpistons N and O is placed in position in the cylinder as clearly shownin Fig 1 so as to completely close the same so that as the cylinder isdrawn upwardly by the conveyers the open end of the cylinder will becompletely closed so as to hold the air forced into the same through theconical member therein in order that a continuous cylinder of glass willbe blown, it of course being understood that the upper end of thecylinder is cracked off as the same is drawn upwardly, in the desiredlength to form the different sized plates of glass.

From the foregoing description it will be seen that I have provided aglass blowing machine which is exceedingly simple and cheap inconstruction amLQne in which the parts are so mounted and operated thatthe cylinder can be drawn upwardly and definitely without any dangerof-breaking the same.

What I claim is 1. In a continuous glass drawing machine the combinationwith a piston rod adapted to carry a bait for starting the cylinder,expansible pistons adapted to be placed on said piston rod and conveyersprovided. with yieldable arms for engaging the cylinder and drawing thesame upwardly.

2. In a continuous glass drawing machine the combination with a tankhaving a conical air supplying member arranged therein, of a pistonslidably mounted above said tank carrying a bait adapted to fit oversaid conical member for starting the cylinder,

conveyers for drawing the cylinder up-- wardly and pistons mounted onsaid piston rod for closing the cylinder.

3. In a continuous glass drawing machine the combination with a tankprovided with an air supplying member, of a pistonrod mounted above saidtank carrying a. bait for forming a cylinder, guide rollers for guid-.ing the cylinder, conveyers provided with yieldable curved arms forengaging the cylinder and drawing the same upwardly and spaced pistonsarranged on said piston rod.

for closing the cylinder,

4. In a continuous glass drawing machine ceases starting the cylinder,conveyers provided with yield ble arms for moving' the cyli'nderupwardly, guide rollers for engaging the cylinder and guiding. thesame-in its upward movement, a piston carried by said spring memldepiston rod comprising a disk having a p111 rality' of segmental curvedmembers, extending" upwardly therefrom overlapping one mental membersoutwardfy.

links of a chain, curved arms carried by'said rs provided with anasbestos facing and means for-'operating'said endless chains. g

6. In a continuous glass drawing mach ne 1 the co'mbination with a tankprovided with a conical air supplying member, of uprights p, 1

tank containing the molten extending upwardly from saidjtank,'horizontal shafts mounted in said. uiprights, sprocket wheelscarried by said sha 5, less I chains passing over said sprockets, springmembers" carried by said sprocket chains having one. of their endsfixedand the other slidably connected'to the link'sof the chain, curved armscarriedby said spring for closing the glass cylinder as the same isdrawn upwardly by-the curved arms;

7 In a continuous glass drawing machine the combination with means forforming a 4 cylinder, of conveyers for drawingvthe cylinder upwardlyafter the same-has been formed, a'conical member arranged in the lassfor .supplying air to'the cylinder an apiston rod. carrying adjustablepistons arranged within said cylinder. a 4

WILLIAM MARTIN. v

dVitnesses:

'7 CHARLIE RnssLA'n,

E. CURRY.

-membersand a piston rodcarrying pistons

